Molarity
Moles-Moles, dilution
Mixed Problems
Mass to Mass
Limiting reactant
100

2 moles of solute in 2 liters of solution

What is 1.0-molar? 

100

CO2 + 2LiOH --> Li2CO3 + H2O How many moles of lithium hydroxide are required to react with 20 mol of CO2?

What is 40 mol LiOH?

100

Mg + 2HCl --> MgCl2 + H2 
How many grams of hydrogen will be produced if we start with 2.0 moles of HCl and excess magnesium?

What is 2.0 g H2?

100

Mg + 2HCl --> MgCl2 + H2 
What mass of His produced from the reaction of 75 g HCl and excess Mg?
MM of HCl = 36.5

What is 2.0 g H2?

100

Mg + 2HCl --> MgCl2 + H2 
If you have 2 moles of each reactant, which reactant is the limiting reactant?

What is HCl? 

200
volume of 6 moles of solute in a 2.0-molar solution 
What is 3.0 liters? 
200

6CO2 +6H2O --> C6H12O6 + 6O2 How many moles of carbon dioxide are needed to react with 3.25 mol of water in the reaction described above?

What is 3.25 mol CO2?

200

Mg + 2HCl --> MgCl2 + H2 What mass of hydrochloric acid is needed to react with 2.50 moles of Mg?
MM of HCl = 36.5

What is 182 g HCl?

200

2KClO3 --> 2KCl + 3O2 
How many grams of KCl are produced if 5.0 g of KClO3 is decomposed?
(MM of KCl = 74.55; MM of KClO3 = 122.55)

What is 3.0 g KCl?

200

Mg + 2HCl --> MgCl2 + H2
If you have 3.0 moles of each reactant, what is the theoretical yield of MgCl2?

What is 1.5 moles? 

300

Amount of solute in 6.0 liters of 3.0-molar solution

What is 18 moles?

300

2Mg +O2 --> 2MgO How many moles of magnesium oxide are produced from 1.2 moles of magnesium?

What is 1.2 mol MgO?

300

4 Al + 3 O2 --> 2 Al2O3    How many moles of aluminum atoms are needed to combine with 1.58 mol of oxygen molecules to make aluminum oxide?

What is 2.1 mol Al?

300

2 Na + Cl2 --> 2 NaCl Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine.

What is 62 g NaCl?

300

2KCl + 3O2 --> 2KClO3
If 44 grams of each reactant is used, what is the limiting reactant? 
(MM of KCl = 74.55; MM of KClO3 = 122.55)

What is KCl?  

400

Mass of solute in 300. mL of a 0.50-molar solution of NaCl

What is 8.8 grams of NaCl?

400

Concentration of 200 mL of a 6.0-M NaOH solution diluted to a volume of 500 mL.

What is 2.4-molar? 

400

2 NH3 --> 3 H2 + N2    How many moles of H2 can be formed by the decomposition of 0.145 moles of ammonia?

What is 0.218 mol H2?

400

2 NaOH + H2SO4 --> H2O + Na2SO4    How many grams of sodium sulfate will be formed from 200 g NaOH?

What is 355 g Na2SO4?

400

2KCl + 3O2 --> 2KClO3
If 22 grams of each reactant is used, what is the theoretical mass of KClO3?
(MM of KCl = 74.55; MM of KClO3 = 122.55)

What is 36.2 grams? 

500

Molarity of 55 grams of NaOH dissolved in 500. mL of solution.  

What is 2.8-molar? 

500

250-mL of a 0.50-M is by diluted ___ mL of 18.0-M HCl.

What is 6.9 mL?  

500

4 Al2O3 + 9 Fe --> 3 Fe3O4 + 8 Al    The mass of aluminum produced when 65 g of aluminum oxide is consumed.
MM of Al2O3 = 101.96

What is 34.4 grams of aluminum?

500

CuCl2 + 2 NaNO3 --> Cu(NO3)2 + 2 NaCl    
If 15 g CuCl2 reacts with NaNO3, what mass of sodium chloride can be formed?
MM of CuCl2 =134.5

What is 13 g NaCl?

500

3 H2 + N2 --> 2 NH
If 11 grams of H2 and 44 grams of N2 react, what is the theoretical mass of NH3?  

What is 54 grams?

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